Hello, since I did not find the patches for loading device tree overlays I used the already merged infrastructure and implemented loading device tree overlays in sysfs. I see that the preexisting patches use configfs for loading overlays. However, there is no clear distinction for using configfs vs sysfs. Technically the capabilities of both filesystems are the same - at least according to the docs I read. Implementation complexity is also about the same disregarding the extra patches to fix configfs deficiencies. Using configfs requires extra option in the kernel which is often not present in preexisting configuration. Using configfs requires the user to assign some unique identifier to the overlay that will be used as directory name beforehand whereas using sysfs I interface directly to the create() function which takes an unflattened overlay blob. Given that information about the overlays is exported in sysfs anyway and the extra directory name for the overlay in configfs is redundant and it may be hard to figure out a collision-free scheme for it in some cases I prefer the sysfs interface. It has also the extra advantage that the interface that exports information about the device tree and the interface for managing it is in one place. Please CC me Thanks Michal -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
